I have a 2006 Mac Pro 2.66, and have original Apple ram mixed with OWC memory and no issues. I was searching around and found this place - Mac Memory Store. Here is the link: http://www.macmemorystore.com/ram/MMS327268.html Is this memory good? Same level as OWC? Or should I avoid it? I did a little research and did not find much on it. Thanks!